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Moscow, Russia

Ford H.A.,U.S. National Radio Astronomy Observatory | Anderson R.,U.S. National Radio Astronomy Observatory | Belousov K.,RAS Lebedev Physical Institute | Brandt J.J.,U.S. National Radio Astronomy Observatory | And 9 more authors.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2014

We present the design, commissioning, and initial results of the Green Bank Earth Station (GBES), a RadioAstron data downlink station located at the National Radio Astronomy Observatory (NRAO) in Green Bank, West Virginia. The GBES uses the modernized and refurbished NRAO 140ft telescope. Antenna optics were refurbished with new motors and drives fitted to the secondary mirror positioning system, and the deformable subreflector was refurbished with a new digital controller and new actuators. A new monitor and control system was developed for the 140ft and is based on that of the Green Bank Telescope (GBT), allowing satellite tracking via a simple scheduling block. Tools were developed to automate antenna pointing during tracking. Data from the antenna control systems and logs are retained and delivered with the science and telemetry data for processing at the Astro Space Center (ASC) of the Lebedev Physical Institute (LPI) of the Russian Academy of Sciences and the mission control centre, Lavochkin Association. © 2014 SPIE. Source

Shustov B.,Russian Academy of Sciences | Sachkov M.,Russian Academy of Sciences | Gomez de Castro A.I.,Complutense University of Madrid | Werner K.,University of Tubingen | And 2 more authors.
Astrophysics and Space Science | Year: 2011

Continuous access to the UV domain has been considered of importance to astrophysicists and planetary scientists since the mid-sixties. However, the future of UV missions for the post-HST era is believed by a significant part of astronomical community to be less encouraging. We argue that key science problems of the coming years will require further development of UV observational technologies. Among these hot astrophysical issues are: the search for missing baryons, revealing the nature of astronomical engines, properties of atmospheres of exoplanets as well as of the planets of the Solar System etc. We give a brief review of UV-missions both in the past and in the future. We conclude that UV astronomy has a great future but the epoch of very large and efficient space UV facilities seems to be a prospect for the next decades. As to the current state of the UV instrumentation we think that this decade will be dominated by the HST and coming World Space Observatory-Ultraviolet (WSO-UV) with a 1. 7 m UV-telescope onboard. The international WSO-UV mission is briefly described. It will allow high resolution/high sensitivity imaging and high/low resolution spectroscopy from the middle of the decade. © 2011 Springer Science+Business Media B.V. Source

Reutlinger A.,Kayser Threde GmbH | Sachkov M.,Russian Academy of Sciences | Gal C.,Kayser Threde GmbH | Brandt C.,Kayser Threde GmbH | And 8 more authors.
Astrophysics and Space Science | Year: 2011

The World Space Observatory Ultraviolet (WSO-UV) is a multi-national project lead by the Russian Federal Space Agency (Roscosmos) with the objective of high performance observations in the ultraviolet range. The 1. 7 m WSO-UV telescope is equipped with UV spectrographs (responsibility of Russia and Germany) and UV imagers (responsibility of Spain). The UV spectroscopic instrumentation comprises two high resolution echelle spectrographs operating in wavelength ranges of 102-176 nm and 174-310 nm respectively, and a Long Slit Spectrograph designed to operate in the range of 102-310 nm. All three spectrographs represent individual instruments. In order to save mass while maintaining high stiffness, the instruments are combined to a monoblock, World Space Observatory Ultraviolet Spectrographs (WUVS). Due to strict technical requirements stated by the customer the material CeSiC (provided by the company ECM) has been selected for the design of the spectrograph structure. In contrast to aluminium, the stable structure of CeSiC is significantly less sensitive to thermal gradients. No further mechanism for focus correction with high functional, technical and operational complexity and corresponding additional System costs are necessary. Using CeSiC also relaxes the thermal control requirements of ±5°C, which represents a considerable cost driver for the S/C design. The phase B2 study of the WUVS instrument finished in December 2010 in collaboration with Russia and with industrial support of the Kayser-Threde company. It included construction of a Structural Thermal Model (STM) for verification of thermal and mechanical loads, stability with respect to thermal distortions and CeSiC manufacturing feasibility. © 2011 Springer Science+Business Media B.V. Source

Dolgopolov V.P.,Lavochkin Association | Basilevsky A.T.,RAS Vernadsky Institute of Geochemistry and Analytical Chemistry | Robinson M.S.,Arizona State University | Plescia J.B.,Johns Hopkins University | Head J.W.,Brown University
Planetary and Space Science | Year: 2013

Shkuratov et al. (2013) described specific photometric anomalies found around the Luna 16, 20 and 23 spacecraft and not found around the Luna 24 spacecraft. The authors explained this lack of an anomaly at the Luna 24 site as a result of the misidentification of the Luna 23 and 24 spacecraft in the LROC images by Robinson et al. (2012). In order to address this question, we synthesized images of the Luna spacecraft as they might appear in the LROC images (made by the Lavochkin Association, builders of the Luna spacecraft series). We compared the model images of the virtual Luna 23 and Luna 24 spacecraft sitting on the lunar surface with the spacecraft seen in the LROC images and concluded, on the basis of similarity of the spacecraft seen in the LROC images with the synthetic images, that identification of the spacecraft in these images by Robinson et al. (2012) is likely correct. © 2013 Elsevier B.V. All rights reserved. Source

de Castro A.I.G.,Complutense University of Madrid | Sestito P.,Complutense University of Madrid | Doreste N.S.,Complutense University of Madrid | Yanez J.,Complutense University of Madrid | And 5 more authors.
SpaceOps 2012 Conference | Year: 2012

The World Space Observatory-Ultraviolet (WSO-UV) is a space telescope built to guarantee access to the ultraviolet range (1150Å-3500Å) in the post Hubble Space Telescope (HST) epoch. WSO-UV is an international endeavor led by the Russian Federal Agency, ROSCOSMOS. WSO-UV is a medium size scientific mission with a telescope of 170 cm primary diameter. The telescope is equipped with instrumentation for astronomical imaging and spectroscopy. WSO-UV will be in a geosynchronous orbit ideally suited for monitoring programs and the observation of weak UV sources. Its expected lifetime is 5+5 years with foreseen launch date September 2015. The WSO-UV Ground Segment is comprised of all the infrastructure and facilities involved in the preparation and execution of the WSO-UV mission operations, which typically encompass real-time monitoring and control of the spacecraft, telescope and instruments as well as reception, processing and storage of the scientific data. The Ground Segment is being developed by Spain in collaboration with Russia within a consortium that involves Academia (the Universidad Complutense de Madrid (UCM) and the Institute of Astronomy of the Russian Academy of Sciences (INASAN)) and industry (GMV and Lavochkin Association) in both countries. Industry is developing, for some components jointly with Academia, the ground segment components that are defined and will be used by the Academic partners. The Academia will have a major involvement in the mission infrastructure development and operations. The Academia partners will also handle the interaction with the international scientific community and the creation of the Scientific Archive. In this contribution, the characteristics of this Russian-Spanish collaboration to jointly operate the WSO-UV space telescope from the academic environment will be described, including the cooperation between Academia and Industry. © 2012 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Source

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